Binder for loose leaves of books.



No. 812,397. PATENTED FEB. 18, 1906. J. P. BOEHNBR.

BINDER FOR LOOSE LEAVES OF BOOKS.

APPLICATION FILED SEPT. 6, 1904.

UNITED sTA rEs r rrnn J ACOB P. BOEHNER, OF FREEPORT, ILLINOIS.

BINDER FQF! LOOSE LEAVES OF BOOKS..

fie. 812,397.

Specification of Letters Patent.

Patented Feb. 13, 1906.

.tached from their holder and have other leaves expeditiousl andconveniently substituted therefor; an it consists of certain new anduseful features of construction and combinations of parts especiallydevised to that end, all as hereinafter fully described, andspecifically pointed out in the claims.

Referring to the accompanying drawings, which form a part of thisspecification, Figure 1 is a top plan view of a holder embodying myinvention, its covers and leaves being Wide open outward and broken awaynear the back thereof, the observer seeing the inside of the same. Fig.2 is a partial section at the dotted line 2 2 in'Fig. 1 of parts thereshown. Fig. 3 is a partial section at the dotted line 3 3 in Fig. 1ofparts there shown. Fig. 4 is a partial section at the dotted line 4 4in Fig. 1 of parts there shown, the semirings of the binder being in thepositions indicated by the dotted lines X in the last-mentioned figure.

Like letters of reference indicate corresponding parts throughout theseveral views. A is a trough-like back piece of the holder and ispreferably substantially D-shaped in cross-section.

B is the back plate plurality of L-shaped slots B therein andtransverse-lugs B thereon,;the latter being provided with concentriccircular bearings B extending therethrough. The back plate B is formed,preferably, of 'a lower thin metallic plate I), having the integral lugsB stamped thereout and bent transversel outward therefrom, and a thinupper meta lic plate I), secured thereto by turning the side portions Ifof the latter closely over the edges b of the former, as clearly shownin Fig. 3. The completed plate B is next placed and secured upon theback piece A by means of screws 6 or in any other suitable manner.

O is a longitudinally-slidable rock-shaft,

of the holder and has amounted in the bearings B in the lugs B of V theback plate B.

'D represents semirings corresponding in back plate B and rigidlysecured by one end D of each thereof to the rock-shaftO and projectingtransversely therefrom and parallel to eachother through the L-shapedslots B in the back plate B and adapted to slide in the vertical arms Dof such iL-shaped slots B and to be rocked over into and detained in thehorizontal arms D of such Pin-shaped slots B by contacting the edges Dthereof. E represents semirings, counterparts of and pprres onding innumber with the semirings an parallel to each other and adjacent to theouter ends of the vertical arms D of the L- shaped slots B. F is'aspring coiled about the shaft D and included between one of the lugs Bonthe back plate B, and one of the semirings D secured to such shaft Cand normally acting through the latter to maintain the movable semiringsD in operative relation to and engagement with their counterpartstationary semirings E, as shown in Figs. 1, 2,

number with the a-shaped slots B in thefast mounted on the back plate B,

and 3, except that in Fig. 2 the free ends of I the semirings D arebroken away to show the semirings E back of such semirings D.

G represents covers connected with the back of the holder by means ofthe binding in the usual manner.

Whenever it is desired to the holder, the shaft C is s the semirings Dare opposite the horizontal arms D of the L-shaped slots B, when suchsemirings D are rocked over thereinto and detained therein by contactwith the sides D thereof, Fig. 4 showing one of the semirings D in suchposition. The free ends of the semirings D E are next inserted throughcircular perforations H inthe leaves H, and the semirings D are swungout of enga ement with the arms D of the L-shaped s ots B, and theaction of the spring F will then restore the semirings D to thepositions shown in Fi 1, therebysecuring the leaves H operative y intheir holder.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is- 7/ 1. In a binder for loose leaves ofbooks, in combination, a back plate having a plurality of L-shaped slotstherein and transverse lugs thereon, the latter provided with concentricplace'leaves H in d endwise until v v paral el to can circular bearingsextendin therethrough, a longitudinally-slidable roc -shaft mounted inthe bearings in the lugs on the back plate, semirings, corresponding innumber With the slots in the back plate and ri idly secured, by one-endof each thereof, to t e rock-shaft, and rojecti transversely therefromand paral el'to eac other through the slots in the ack plate, andadapted to slide in the vertical arms of such slots and to be rockedover into and detained in their horizontal arms, semirings, thecounterparts of and corresponding in number with the hereinbefore--mentioned semiringsand fast mounted, on the-back plate, parallelto'each other and adj acent to the outer ends of the vertical arms ofthe slots therein, ,and a s rin normally acting, through, the longituinal y-slidable rock-shaft, to maintain the, movable semi; rings inoperative relation to and in-engagement With their counterpartstationary semi rings, substantially as described.

2. In a binder for loose leaves of books, in

combination, a trough-like back piece, preferably D shaped in crosssection, a back plate fast thereto and having a pluralit of L-shapedslots thereinand' transverse l ugs thereon, the latter provided withconcentric circular bearings extendin therethrough, a lonitudinally-sl-idable roc -shaft mounted in 51c bearings in the lugs onthe. back plate, semirings, corresponding in number withthe slots intheback plate and rigidly secured, by one, end .of each I thereof to therock-shaft, and rojectin I transversely therefrom and l i other throughthe slots in the ack plate, and adapted to slide in the vertical-.armsofsuch slots and. to be rocked over into and detained-in their horizontalarms, semiring s, the counterparts of and corresponding in number-withthe hereinbeforementioned semirings and fast-mounted, on the backplate,parallel to-each other andadjacent to the outer ends of the vertcal arms ofthe slots therein, and a sprin normally acting, through thelongitudjna ly-slidable rock shaf t, to maintainthe movable sen1i ringsin operative relation to. and engagementwith their coun art stationarysemirings, substantially as escribed.

3. In a binder for loose leaves of books, in

combination, a trough-like back piece A, preferably D shaped incrosssection,- a back plate B fast thereto and having a plurality ofL-shaped slots B therein and transverse lugs B? thereon, the latterprovided with concentric circular bearings B extending there through, a.longitudinally-slidable rock-shaft C, mounted inthe bearings B in the;lugs B on the; back plate I B, semirings: -D,' corre-'sponding-innumberwiththe slots B in the back plate B and rigidlysecured-by one end D of each thereof,=to the rock-shaftC, andprojecting-l transvelsely therefrom and aralel to eac other through the.slots B in the back plate B, and ada ted to slide in the vertical arms Dof such s ots B" and to be rocked over intoand to be detained in theirhorizontal arms D semirings E, the counterparts of 1 and correspondingin number with the semi rings D and-fast mounted, on the back plate B,parallel to each other and adjacent to the outer ends ofthe verticalarms D of the slots B therein, a spring encirclingtherock-shaft C andserving therethrough -to., ma intaino the movable semirings Dinoperative relation to and engagement ,with their; counterpartstationary semiringsE, and-covers G, connected with the. backof the holdr, substantially as described.

In testimony WhGIQOf I have signed my name to this specification in-thepresence of two subscribingvwitnessesv JAooB P; BOEHNER.

, Witnesses:

PAUL' WAGNER, CLARENCE BRESSLER;

